In regards to the EU seed laws..
Just read this about some new sweet potatoes bred in Spain:
“For the moment, these involve advanced clones and not commercial varieties, as they are not registered at the Spanish Office for Plant Varieties (OEVV in the Spanish acronym) or the European Community Plant Variety Office (CPVO). The process of registering is a long one, lasting about 15 years.” from http://www.sciencedaily.com/releases/2013/04/130424081058.htm